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Finding the Third Proportional to 49,921.31 and 75,907.13

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Solution

The third proportional to 49,921.31 and 75,907.13 is: 115,419.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,921.31 : 75,907.13 = 75,907.13 : x
  2. Step 2: Convert to fraction form
    49,921.31/75,907.13 = 75,907.13/x
  3. Step 3: Cross multiply
    49,921.31x = 75,907.13 × 75,907.13
  4. Step 4: Simplify right side
    49,921.31x = 5,761,891,625.77
  5. Step 5: Solve for x
    x = 5,761,891,625.77/49,921.31
  6. Step 6: Final answer
    x = 115,419.47

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.